![]() ![]() If the ACK does not reach the sender before a certain time, known as the timeout, the sender sends the same frame again. After receiving a valid frame, the receiver sends an ACK.After sending each frame, the sender doesn't send any further frames until it receives an acknowledgment (ACK) signal.A stop-and-wait ARQ sender sends one frame at a time it is a special case of the general sliding window protocol with transmitting and receiving window sizes equal to one and greater than one respectively. ![]() It is the simplest automatic repeat-request (ARQ) mechanism. It ensures that information is not lost due to dropped packets and that packets are received in the correct order.Stop and Wait Protocol also referred to as alternating bit protocol, is a method in telecommunications to send information between two connected devices. ![]()
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